(Answered)-have twice no one provide me correct soln 100% correct and detail - (2025 Updated Original AI-Free Solution

Discipline:

Type of Paper:

Academic Level: Undergrad. (yrs 3-4)

Paper Format: APA

Pages: 5 Words: 1375

Buy For $11.00 Order Custom Paper

Buy For $11.00

Question

have twice no one provide me correct soln

100% correct and detail soln acceptable

Determine the speed at which the kinetic energy of an electron is equal to three times its rest energy.

Answer : 0.97c

From special thoery of relativity
E = K.E+mc2
K.E =3mc2
mc2 = 2m c2+mc2 =3 mc2
=4
= 1/[1-(v2/c2)]1/2
42 = 1/[1-(v2/c2)]
1-(v2/c2) =1/16
(v2/c2) = 1-1/16 =15/16
v/c = 0.9682458
v =0.97 c(2dp)